Global Patent Index - EP 2021276 A2

EP 2021276 A2 2009-02-11 - PROCESS FOR PURIFYING PERFLUORINATED PRODUCTS

Title (en)

PROCESS FOR PURIFYING PERFLUORINATED PRODUCTS

Title (de)

VERFAHREN ZUM REINIGEN VON PERFLUORIERTEN PRODUKTEN

Title (fr)

PROCEDE DE PURIFICATION DE PRODUITS PERFLUORES

Publication

EP 2021276 A2 (EN)

Application

EP 07795562 A

Priority

  • US 2007012873 W
  • US 80966306 P

Abstract (en)

[origin: WO2007143055A2] This invention relates to a process for purifying at least one of perfluoromethane and nitrogen trifluoride from a mixture thereof using an ionic liquid. The process may be performed by a technique such as extractive distillation or absorption wherein at least one ionic liquid is used as the entraining agent or absorbent, respectively.

IPC 8 full level (invention and additional information)

C01B 21/086 (2006.01); C07C 17/38 (2006.01)

CPC (invention and additional information)

C07C 17/38 (2013.01); C01B 21/0837 (2013.01); C07C 17/386 (2013.01)

Combination set (CPC)

C07C 17/386 + C07C 19/08

Citation (search report)

See references of WO 2007143055A2

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

WO 2007143055 A2 20071213; WO 2007143055 A3 20090514; CN 101541673 A 20090923; CN 101541673 B 20130821; EP 2021276 A2 20090211; EP 2021276 B1 20130717; JP 2009541212 A 20091126; JP 5266211 B2 20130821; KR 20090024742 A 20090309; TW 200808649 A 20080216; US 2007297965 A1 20071227; US 8771626 B2 20140708

INPADOC legal status


2015-05-29 [PG25 GB] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: GB

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20140531

2015-05-29 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: FR

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20140602

2015-04-30 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: DE

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20141202

2015-02-27 [REG FR ST] NOTIFICATION OF LAPSE

- Effective date: 20150130

2015-02-26 [REG DE R119] APPLICATION DEEMED WITHDRAWN, OR IP RIGHT LAPSED, DUE TO NON-PAYMENT OF RENEWAL FEE

- Document: DE 602007031727

- Effective date: 20141202

2015-01-28 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

- Effective date: 20140531

2014-12-02 [REG DE R119] APPLICATION DEEMED WITHDRAWN, OR IP RIGHT LAPSED, DUE TO NON-PAYMENT OF RENEWAL FEE

- Document: DE 602007031727

2014-07-31 [REG DE R097] NO OPPOSITION FILED AGAINST GRANTED PATENT, OR EPO OPPOSITION PROCEEDINGS CONCLUDED WITHOUT DECISION

- Document: DE 602007031727

- Effective date: 20140422

2014-06-25 [26N] NO OPPOSITION FILED

- Effective date: 20140422

2013-09-12 [REG DE R096] DPMA PUBLICATION OF MENTIONED EP PATENT GRANT

- Document: DE 602007031727

- Effective date: 20130912

2013-07-17 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): DE FR GB

2013-07-17 [REG GB FG4D] EUROPEAN PATENT GRANTED

2010-05-19 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

- Designated State(s): DE FR GB

2010-04-21 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) (DELETED)

2010-03-17 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20100215

2009-07-08 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: C01B 21/086 20060101AFI20090529BHEP

2009-07-08 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: C07C 17/38 20060101ALI20090529BHEP

2009-06-24 [R17D] SEARCH REPORT (CORRECTION)

- Effective date: 20090514

2009-03-25 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: SHIFLETT, MARK, BRANDON

2009-03-25 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: YOKOZEKI, AKIMICHI

2009-02-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20081125

2009-02-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): DE FR GB